This week has been a mixture of lab and field work. From Tuesday through Thursday, we were in the field collecting data from a few of the “stand alone” OIINK stations. While most of the 70 stations use telemetry to send the data remotely to the computers in the lab, several are in secluded areas without cell phone service and must be visited to gather the data. It turns out that the cell phone reception (or lack thereof) in southeast Missouri is pretty terrible so that is where we spent most of our time. On the upside, the southeastern part of Missouri is probably the most beautiful part of the state!
Most of the stations that are up and running have been active for about two years now, constantly gathering data. The data that Bradley and I will be using for our analyses consist of brand new 2013 waveforms from the OIINK array that have never been looked at. These waveforms have not been processed and are in their raw form for us to play with. Having the opportunity to be the first ones to use this data is part of what is so exciting about the OIINK project.
Other than the field work, this was a pretty slow week for me. When in the lab, I was mostly reading through papers to get an idea of parameters that I should be using for my initial model for the Illinois basin. Fortunately for me, the guys from the Indiana Geological Survey just finished up a very detailed model of the basin and its properties, so most of the work was done for me. My goal for next week is to use their data on porosity, permeability, and density of the different stratigraphic units of the basin to model the velocities through these units. I can then run my model to create synthetic receiver functions and see how they compare with the real data. The hope is that by having an accurate model of the basin, deconvolution can be used to get rid of the basin response so that we are only left with the interactions from the Moho.
Over the past couple of days, I’ve finally had the opportunity to sit down and think about my goals for the summer. Overall, I would like to come away from this internship with more than just a pretty AGU poster. I’m hoping to get as much exposure to seismology as possible in order to see if it is truly a good fit for me. My more focused goals are to:
1. Understand the motivation and bigger picture of the project
2. Become very comfortable with unix and navigating the database
3. Gain a good understanding of the theory behind receiver functions
4. Become proficient with the programs I will be using to analyze data and actually understand how these programs are manipulating the data
5. Try to independently draw conclusions from my results
6. Get exposure to fieldwork
7. Get AGU poster mostly finished before going into the field for the last two weeks. (or at least a rough outline)
8. Stay on task with the schedule outlined by my advisor. See the project through from start to finish
9. Learn to safely cook reasonably edible food
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